Well she really isn't too bad of a mare! I really like her! I would definitely guess for her to be a Thoroughbred (Does she have a tattoo under her lip?- It's a good way to check and see if she ever raced or maybe even give you some idea of her pedigree.) She is definitely a cute one for sure! :)
She has a very pretty, feminine face and a very nice neck. Her neck is a little thin, but should be fine once she builds up her topline. Her shoulder is a little straight, but really isn't too bad. She should have a pretty nice reach in her front end through her gaits. (Generally, the less of an shoulder angle you have, the more smooth and more ground covering the stride will be.)
Her front legs are pretty nice, but she does appear to be a little toed out. She also has a longggg back. Again, this will be significantly better to the eye with overall muscling and more groceries. Her back end looks funky, and I think is her weakest area. (And she is standing weird for you too, which doesn't help to see what's really going on! Haha) She may be weak in the stifle area, but it's hard to tell since she really just needs to build muscle throughout her entire bum. She also looks to either be a little cowhocked or toed out in her hind-- it's hard to tell based off of the pictures.
Overall, I think that she is a lovely mare. Again with continuing on getting weight and muscle on, a lot of the faults I pointed out won't be such a big deal.
I find rescues to be so rewarding, and it's obvious with the look on her face that you are doing an excellent job! :)
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